Matrix Groups
Matrix groups are central to mathematics and important in physics and engineering. The objects of study are classes of matrices (e.g., orthogonal, unitary, or symplectic) with both algebraic (groups) and geometric/topological (manifolds) structure. Thus the course is a mixture of algebra, geometry/topology, and a little analysis. Topics include Lie algebras (an extension of the notion of vector multiplication in three-dimensional space), the exponential mapping (a generalization of the exponential function of calculus), and representation theory (which studies different ways groups can be represented by matrices). Concrete examples will be emphasized. Background not included in the prerequisites will be developed as needed. Students will be expected to be comfortable writing proofs. More experience with proofs may be gained by first taking a 3000-level MATH course.
spring 2026
Readings
- Stillwell, John, Naive Lie Theory , Springer-Verlag, 2008 (ISBN: 978-0-387-78214-0) — free e-book through the Cornell Math Library
- Tapp, Kristopher, Matrix Groups for Undergraduates, 2nd edition , American Mathematical Society, 2016 (978-1-470-42722-1) — free e-book through the Cornell Math Library
- Godement, Roger, Introduction to the Theory of Lie Groups , Springer, 2017 (978-3-319-54373-4) — free e-book through the Cornell Math Library
Prerequisites & course information
MATH 2210 or MATH 2230 or MATH 2310 or MATH 2940; MATH 2220 or MATH 2240 or MATH 1920; or equivalents.
Sources
Catalogue variants
- Matrix Groups · 4.0 · Undergraduate